简约科技风抽象几何线条点阵网络结构数字化连接渐变深

minimalist illustration, modern style, main color scheme of dark blue and light blue, accented with white, blockchain technology-related network structure pattern at the bottom, forming a hemispherical network structure, decorative elements include point-line connected network patterns, background of dark blue gradient with subtle network line textures, conveys a sense of professionalism, futurism, and trust